2023高一·江苏·专题练习
1 . 指出下列命题中的条件p和结论q.
(1)若
,则x,y互为相反数.
(2)如果
,则
.
(3)当
时,
.
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f1a686b80b8f109a929f58c2de7201d.png)
(2)如果
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ed006b944ea64f970fee46e2f558467.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a479511a50da604b2fc7398617db8387.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/707ea658f3a9359f5740d5aab48f7948.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08587591cfb5275dc14d5bb66a397e93.png)
您最近一年使用:0次
2 . 下列语句是否是命题?若是,判断其真假,并说明理由.
(1)
.
(2)
或
是方程
的根.
(3)空集是任何非空集合的真子集.
(4)指数函数是增函数吗?
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/398bd94dca452ccb6bca8406ba04bccb.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/707ea658f3a9359f5740d5aab48f7948.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e55aa0a20848c37c1892c567b2315e04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b490251771387215bb9a184ded06fed1.png)
(3)空集是任何非空集合的真子集.
(4)指数函数是增函数吗?
您最近一年使用:0次
解题方法
3 . 给定下列命题,其中真命题是( )
A.![]() ![]() |
B.若命题“![]() ![]() ![]() ![]() |
C.![]() ![]() ![]() |
D.![]() ![]() |
您最近一年使用:0次
4 . 下列语句中,为真命题的是( )
A.直角的补角是直角 | B.同旁内角互补 |
C.过直线![]() ![]() ![]() ![]() | D.两个锐角的和是钝角 |
您最近一年使用:0次
23-24高一上·江苏·课后作业
5 . 一般地,命题“若
则
”为真,记作“![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
___
”(或“![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
___
”),读作“
推出
”;
“若
则
”为假,记作“![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
___
”(或“![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
___
”),读作“
推不出
”.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
“若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
您最近一年使用:0次
6 . 在数学中,我们常常遇到定义,定义是对某些对象标明__ 、指明___ ,或者揭示所研究问题中对象的____ .
您最近一年使用:0次
7 . 在数学中,有些已经被证明为真的____ 可以作为推理的依据直接使用,一般称之为定理.
您最近一年使用:0次
8 . 在数学中,许多命题可表示为“若
则
”,其中
叫作命题的___ ,
叫作命题的___ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
您最近一年使用:0次
名校
9 . 判断下列命题的真假:
(1)一个实数不是质数就是合数;
(2)若
或
,则
;
(3)正方形既是矩形又是菱形;
(4)若
,则
(1)一个实数不是质数就是合数;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e55aa0a20848c37c1892c567b2315e04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2c9d44deafbbbb631c4c0db884c8874.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2911c62bb63cd544ce8e8821f81e1c7d.png)
(3)正方形既是矩形又是菱形;
(4)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b05d2be27e8f53e4de3071846dffb41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/caf22d7d1a965bda25168a233fb6290c.png)
您最近一年使用:0次
10 . 下列语句为真命题的是( )
A.![]() |
B.四条边都相等的四边形为矩形 |
C.![]() |
D.今天是星期天 |
您最近一年使用:0次